How many calories are in Optifast chocolate bar?

Optifast chocolate bar contains 340 calories per 100g serving, with 34g of protein, 36g of carbohydrates, and 11g of fat.

Is Optifast chocolate bar good for fat loss?

Optifast chocolate bar has a macro efficiency score of 0.40 (scale: 0–1.0). It provides 40% of its calories from protein, making it a moderate choice for fat loss goals.

0.40

Verified Asset

Optifast chocolate bar.

Metabolic profile analysis. Technical breakdown of Optifast chocolate bar and its impact on skeletal muscle retention and daily energy expenditure.

Total Energy340kcal

Bio-Protein34g

Carbohydrates36g

Total Lipids11g

Nutritional Efficiency Report

Optifast chocolate bar is a calorie-dense food with elite-protein content. At 340 kcal per 100g, it delivers 34g of protein — representing 40% of its total caloric load. Carbohydrates account for 42% and fats for 29% of calories.

"Efficiency Score 0.40 — a standard-class asset. Best used as a caloric filler within a well-structured macro protocol, paired with higher-efficiency protein sources."

At 36g carbs per 100g, it is better suited to carb-cycling or maintenance phases.

Protocol Compatibility

Ketosis Impact

At 36g carbs per 100g, it is better suited to carb-cycling or maintenance phases.

Thermic Effect (TEF)

Protein content of 34g per 100g triggers a significant Thermic Effect of Food. The body expends approximately 20–30% of protein calories during digestion, yielding a net caloric benefit compared to equivalent fat or carbohydrate sources.

Expand Your Protocol.

Based on the metabolic profile of Optifast chocolate bar, these related data nodes are most relevant to your nutrition architecture:

High Protein Foods

Integrate Asset.

Use the clinical weekly planner to distribute Optifast chocolate bar across your metabolic windows.

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1. Biological Metrics

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2. Dietary Logic

Institutional Disclaimer: The nutritional data provided for Optifast chocolate bar is derived from clinical databases and algorithmic estimation. This report is for metabolic infrastructure planning only and does not constitute medical advice. Consult a clinical nutritionist before implementing aggressive deficit protocols.